Research Article
Number Size Distribution of Ambient Particles in a Typical Urban Site: The First Polish Assessment Based on Long-Term (9 Months) Measurements
Figure 3
Number size distribution: (a) 1-hour concentrations, for entire measurement period (January 1, 2010–October 7, 2010); (b) 1-hour concentrations, in summer (April 1, 2010–September 30, 2010) and winter (January 1, 2010–March 31, 2010, and October 1, 2010–October 7, 2010); (c) 24-hour concentrations, for entire measurement period (January 1, 2010–October 7, 2010); (d) 24-hour concentrations, in summer (April 1, 2010–September 30, 2010) and winter (January 1, 2010–March 31, 2010, and October 1, 2010–October 7, 2010).